5/21/12

CodeIgniter is an open source web application framework built for PHP coders who want to develop a full-feature web application. It has libraries which help us to perform many tasks very easily. It works on the MVC Pattern.

Model–View–Controller (MVC) is a design pattern for computer user interfaces that divides an application into three areas of responsibility:

the Model: the data structures that represent the application's state.

the View : which observes the state and generates output to the users.

the Controller : which translates user input into operations on the model.

5/20/12

The transaction isolation levels in JDBC help us to determine whether the concurrently running transactions in a DB can affect each other or not. If there are 2 or more transactions concurrently accessing the same DataBase, then we need to prevent the actions of the transactions from interfering with each other.The above is achieved using the isolation levels in JDBC.

5/7/12

Arrays in all languages whether Java, C++, Python, C etc are the same.

Definition, Arrays are complex variables that store a group of values under a single variable name.

Creating Arrays

Its difficult for a person who is new to PHP to create an array, because arrays every language is created differently though they do the the same thing. This was a problem which I also had initially when I started coding in php.

5/5/12

Before moving on to the different algorithms, let's first see what does an algorithm actually mean?

Definition :

A process or set of rules to be followed in calculations or other problem-solving operations, esp. by a computer.

Aho, Hopcroft and Ullman, had stated in their book on algorithms, named, "The Design and Analysis of Computer Algorithms" that "Perhaps the most important principle for the good algorithm designer is to refuse to be content."

5/2/12

This is not a tutorial with codes, its a tutorial to make people aware about Cloud Computing, later posts will have tutorials with examples of App Engine. Before we move into Cloud Computing and its characteristics. Lets take the word cloud.

CLOUD

Cloud is a place or an area where we have all the components of cloud computing, basically its a metaphor for the Internet. By components I mean Server (Application/Back-up), Database, Back-up Storage, Network etc.